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Chapter 1: Specifications

1. Specifications

1.1 General

General Specifications

Certifications FCC Part 15, Class A, CE, N EMA TS2, UL® Class 1, Division 2, Groups A, B, C, and D
Compatible Operating
Systems
Windows® XP (32/64 bit), 2003 Server (32/64 bit), Windows Vista® (32/64 bit), 2008 Server (32/64 bit), Windows 7 (32/64 bit)
Configuration Options Via serial port using Hard ened Serial Server Software, via netw ork using Hardened Se rial Server Soft ware with an Ethernet co nnection
or a standard Web browser su ch as Internet Explo rer® 7, 8, or 9, or Firefox® 3 or 4
Enclosure Rating: IP30;
Mounting: DIN rail mount (35 mm)
User Controls (1) Reset button
Connectors LES421A: (1) DB9 M, (1) 5-pin te rminal block, (1) RJ -45, (1) 2-position plugga ble terminal block for p ower;
LES422A: (2) DB9 M, (1) R J-45, (1) 2-position pluggable terminal block for power;
LES424A: (4) DB9 M, (1) R J-45, (1) 3-posi tion pluggable terminal block and (1) locking bar rel connector for powe r
Indicators LES421A: (4) LEDs: (1) Ready, (1) Serial, (1) Ethernet Li nk, (1) Ethernet Speed;
LES422A: (7) LEDs: (1) Ready, (2) Serial, (2) Ethernet Link, (2) Ethernet Speed;
LES424A: (9) LEDs: (1) Ready, (4) Serial, (2) Ethernet Link, (2) Ethe rnet Speed
Temperature Tolerance Operating: -40 to +176° F (-4 0 to +80° C) ;
Storage: -40 to +185° F (-4 0 to +85° C);
Maximum Ambient Surrounding Air Temperature: 176° F (80° C)
Operating Humidity 10 to 95%, noncondensing
Power LES421A, LES422A: 10 to 48 V DC (58 VDC max. ), 4.0 watts max .;
LES424A: Locking barrel conn ector input: Voltage requirements: 10 to 30 V DC maximum, Class 2 gro unded type supply only
NOTE: Coaxial power cable must be in accordance with Class 2 requirements in Article 725 of the NEC. The locking barrel connector
must not be used in a hazardous environment.
LES424A (continued): Consumption: 6.0 watts maximum;
Terminal blocks: Wire size: 28 to 16 AWG,
Wire Type: Copper wire only,
Tightening Torque: 5 kg-cm,
Wire Temperature Rating: 105° C minimum, sized for 60° C ampac ity
NOTE: One conductor per term inal.
Size LES421A, LES422A: 1.2"H x 3.2"W x 4.7"D (3 x 8.1 x 11.9 cm);
LES424A: 1.8"H x 4.4"W x 6.8"D (4.6 x 12.2 x 17.1 cm)

1.2 Serial Interface

Serial Interface Specifications

Baud Rates 75, 150, 300, 600, 1200, 2400, 48 00, 7200, 9600, 144 00, 19200, 28800, 38 400, 57600, 115200, 230400
Data Bits 5, 6, 7, 8
Flow Control None, RTS/CTS, X-ON, X-OFF
Mode Selection RS-232/422/485 software-sele ctable
Parity None, even, odd, mark, spa ce
RS-232 Lines T XD, RXD, RTS, CT S, DTR, DSR, DCD, GND
RS-422 Lines TXDA (-), TXDB (+), RXDA( -), RXDB (+) , GND
RS-485 (2-Wire) Data(-), Data(+), GND
RS-485 (4-Wire) TXDA(-), TXDB (+), RXDA( -), RXDB (+ ), GND
RS-422/485 Biasing Auto 1 K-ohm pullups and pulldowns
RS-422/485 Termination Termination with through hole (user supplied)
RS-485 Data Con trol Auto control via Data Multipoint Control Unit (MCU)
Stop Bits 1, 1.5, 2